A document by Brazilian environmental watchdog Ibama seen by Reuters said Anglo American would only be allowed to resume operations once it demonstrates the pipeline's security.
The proposal, signed by companies responsible for 85% of the DRC's copper, cobalt and gold output, suggest that sliding royalties will give the government a higher share of revenues.
In partnership with the Wits Mining Institute (WMI) at the University of the Witwatersrand, the company launched the Sibanye-Stillwater Digital Mining Laboratory (DigiMine).